Seems to work well out of the package. I haven't gotten to use it yet, but I tested all the accessories and they seem to be well balanced and look like they should make things easier. My only complaint is the way you put the batteries in. It took some trial and error to get it open and then seated right.

Looks like this little tool will be handy for any future modeling I do. The bits push into place and have no lock to keep them in position. I can see that wearing out quickly but time will tell, I will not be keeping the bits in the tool while it is not in use since that will probably facilitate the bit holder becoming weak quicker. It will go well with my Dremel tool.

Good for preparatory work. Goes a lot faster than with sandpaper.
Too bad that you can only use the included essays. The Dremel attachments are too thick for the grinder. Quality is adequate for the price, you should not expect too much. All in all a good thing!

My grinder works very well, just a little bit too strong leaving some scratches on the parts. Too bad you can´t adjust the speed of this item to your needs (but for that low price I really can´t complain). It is perfect for hard to reach areas.

Tool works ok, not the strongest and overall more for smaller parts useful due to its power. But considering the price its ok. But if your plan on doing heavier duty work this is not recommended as you can't expect too much of a battery sourced grinder :)

Useful tool for pre-sanding. This saved me some time in removing the excess material from casting tabs on my last kit. Some people complain about it's low power, but i find it just enough to do it's work properly.
The only downside to it is that you can't file epoxy putty with it. The fine particles will stick to your tool and can't be removed via anything i've tried. This though doesn't prevent it from working fine on resin. Thanks for the tool, it's pretty useful considering it's price.